/*
 * ==========================================================================*\
 * | $Id$
 * |*-------------------------------------------------------------------------*|
 * | Copyright (C) 2009 Virginia Tech | | This file is part of CloudSpace. | |
 * CloudSpace is free software; you can redistribute it and/or modify | it under
 * the terms of the GNU General Public License as published | by the Free
 * Software Foundation; either version 3 of the License, or | (at your option)
 * any later version. | | CloudSpace is distributed in the hope that it will be
 * useful, | but WITHOUT ANY WARRANTY; without even the implied warranty of |
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | GNU General
 * Public License for more details. | | You should have received a copy of the
 * GNU General Public License | along with CloudSpace; if not, see
 * <http://www.gnu.org/licenses/>.
 * \*==========================================================================
 */

package cloudspace.security.permissions;

import cloudspace.security.CloudSpaceUser;


// -------------------------------------------------------------------------
/**
 * Represents a directory permission token that applies to any user.
 * 
 * @author Tony Allevato
 * @author Last changed by $Author$
 * @version $Revision$, $Date$
 */
public class AnybodyPermissionToken extends PermissionToken
{
    // ~ Constructors ..........................................................

    // ----------------------------------------------------------
    public AnybodyPermissionToken( boolean allowsRead, boolean allowsWrite )
    {
        super( allowsRead, allowsWrite );
    }


    // ----------------------------------------------------------
    public AnybodyPermissionToken( String permissions )
    {
        super( permissions );
    }


    // ~ Methods ...............................................................

    // ----------------------------------------------------------
    @Override
    public boolean matchesUser( CloudSpaceUser user )
    {
        return true;
    }


    // ----------------------------------------------------------
    @Override
    public boolean isSimilarTo( PermissionToken token )
    {
        return ( token instanceof AnybodyPermissionToken );
    }


    // ----------------------------------------------------------
    @Override
    public int getSpecificity()
    {
        return Integer.MIN_VALUE;
    }


    // ----------------------------------------------------------
    @Override
    public String toString()
    {
        StringBuffer buffer = new StringBuffer();
        buffer.append( "* = " );

        if ( allowsRead() )
        {
            buffer.append( 'r' );
        }

        if ( allowsWrite() )
        {
            buffer.append( 'w' );
        }

        return buffer.toString();
    }
}
